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SPECIFICTION
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Cbox Tax

cbox.dk

Self-hosted
Visit cbox.dk
Spec score 7.6 #12 of 28 in Tax Engine Software

Spec sheet

What it does
Cbox Tax is a self-hostable consumption-tax engine for Laravel that calculates tax treatment, rates, and place of supply.Read 9 Oct 2026 · cbox.dk
Purpose
Cbox Tax is a self-hostable consumption-tax engine for Laravel that calculates tax treatment, rates, and authority breakdowns.Read 4 Oct 2026 · cbox.dk
Intended users
Cbox describes its work as building tools for teams that run PHP in production.Read 4 Oct 2026 · cbox.dk
Integrations
The package is built on Geo for Laravel and supports pluggable rate sources, including EU TEDB, the us-tax-data dataset, and commercial adapters.Read 4 Oct 2026 · cbox.dk
Support
The repository directs users to report errors by opening an issue with the register release version.Read 4 Oct 2026 · github.com
Beta status
The package is marked beta, and its documentation says the data and modeled law may contain undiscovered errors.Read 9 Oct 2026 · github.com
Buyer exemptions
Assessments can apply resale, nonprofit, or government certificates, while certificate capture and verification remain the user's responsibility.Read 9 Oct 2026 · cbox.dk
Coverage limits
The maker says some jurisdictions are omitted until rate data is verified, including some Pakistani provinces and Brazil.Read 9 Oct 2026 · cbox.dk
Data integrity
The documentation describes offline SHA-256 verification of register files, while stating that this does not authenticate the publisher or establish legal correctness.Read 4 Oct 2026 · cbox.dk
Extensible data sources
A pluggable TaxRateSource contract supplies rates, and the package can use static, remote, caching, or chained rate sources.Read 9 Oct 2026 · cbox.dk
Fail-closed behavior
The engine refuses to calculate when a regime or rate is missing instead of assuming a zero rate.Read 9 Oct 2026 · cbox.dk
Geocoding integration
The shipped Geocodio geocoder resolves US and Canadian addresses to a state or province; its own tax calculation is not used.Read 9 Oct 2026 · cbox.dk
License and data terms
The package is MIT licensed, while the register's data is separately licensed under PolyForm Internal Use 1.0.0, which excludes redistributing the data or reselling lookups.Read 9 Oct 2026 · github.com
License and limits
The package is MIT licensed, while register data uses PolyForm Internal Use 1.0.0 and cannot be redistributed or resold as rate lookups under that license.Read 4 Oct 2026 · cbox.dk
Local operation
The register is synced to local disk, and the engine reads it without a network call while pricing.Read 4 Oct 2026 · cbox.dk
Maker and intended audience
Cbox describes itself as a one-person operation focused on tools for teams running PHP in production.Read 9 Oct 2026 · cbox.dk
Missing data behavior
The engine refuses to calculate when a regime or rate is missing rather than assuming a zero rate.Read 4 Oct 2026 · cbox.dk
Requirements
The repository lists PHP ^8.4, Laravel ^13, ext-dom, ext-zlib, and cboxdk/laravel-geo as requirements.Read 9 Oct 2026 · github.com
Reverse charge
Its EU VAT rules include intra-EU B2B reverse charge and VIES-validated customer tax IDs.Read 9 Oct 2026 · cbox.dk
Tax coverage
It models EU VAT, national VAT and GST, US sales tax, Canadian GST and HST, India dual GST, and Malaysia SST.Read 4 Oct 2026 · cbox.dk
Tax logic
It handles place of supply, reverse charge, inclusive and exclusive pricing, exemptions, and seller registration routing.Read 4 Oct 2026 · cbox.dk
Tax regimes
It covers EU VAT, national VAT and GST, US sales tax, and Canadian GST and HST.Read 9 Oct 2026 · cbox.dk
Technical requirements
The repository lists PHP ^8.4, Laravel ^13, ext-dom, ext-zlib, and cboxdk/laravel-geo as requirements.Read 4 Oct 2026 · github.com
US sales tax
US tax application checks that the state resolves, the seller has nexus there, and the product is taxable there.Read 9 Oct 2026 · cbox.dk

Where Specifiction places it

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